PREFIX dcterms: <http://purl.org/dc/terms/>
PREFIX foaf:    <http://xmlns.com/foaf/0.1/>
PREFIX owl:     <http://www.w3.org/2002/07/owl#>
PREFIX prov:    <http://www.w3.org/ns/prov#>
PREFIX qudt:    <http://qudt.org/schema/qudt/>
PREFIX rdf:     <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
PREFIX rdfs:    <http://www.w3.org/2000/01/rdf-schema#>
PREFIX skos:    <http://www.w3.org/2004/02/skos/core#>
PREFIX xsd:     <http://www.w3.org/2001/XMLSchema#>

<>      dcterms:license        <https://creativecommons.org/licenses/by/4.0/>;
        dcterms:references     <https://portal.dgiwg.org/files/68063>;
        dcterms:rights         "(C) Copyright DGIWG. Licensed under the terms in CC BY 4.0 (stated in DGIWG 206-3).";
        dcterms:rightsHolder   [ foaf:homepage  <https://dgiwg.org/>;
                                 foaf:name      "Defence Geospatial Information Working Group (DGIWG)"
                               ];
        prov:generatedAtTime   "2026-11-13T10:20:32Z"^^xsd:dateTime;
        prov:hadPrimarySource  <https://portal.dgiwg.org/files/?artifact_id=76200>;
        prov:wasAttributedTo   <../index#dgifwrap>;
        prov:wasGeneratedBy    <../index#conversion>;
        foaf:primaryTopic      <#it>;
        <../vocab#baseline>    "2026-1" .

<#it>   rdf:type              <../vocab#Attribute> , rdf:Property;
        rdfs:domain           <../feature/bh090#it>;
        rdfs:range            <#values>;
        dcterms:dateAccepted  "2025-04-23"^^xsd:date;
        skos:definition       "A statistical measure representing the average time span between flood events of a specific magnitude."@en;
        skos:notation         "FRI";
        skos:prefLabel        "Flood Recurrence Interval"@en;
        skos:scopeNote        "Flood recurrence intervals assess flood risk by expressing the average period between events of a given size. Standard intervals are typically based on USGS and FEMA data, while the inclusion of a 20-year interval is supported by regional studies to better reflect local hydrologic conditions."@en;
        <../vocab#conceptSource>  "USGS";
        <../vocab#datatype>   "Enumeration";
        <../vocab#name>       "floodRecurrenceInterval";
        <../vocab#status>     "valid";
        <../vocab#usedBy>     <../feature/bh090#it> .

<../value/fri_5#it>  skos:notation  "FRI_5";
        skos:prefLabel  "Twenty Five Year Recurrence"@en .

<../value/fri_6#it>  skos:notation  "FRI_6";
        skos:prefLabel  "Fifty Year Recurrence"@en .

<../value/fri_7#it>  skos:notation  "FRI_7";
        skos:prefLabel  "One Hundred Year Recurrence"@en .

<../feature/bh090#it>
        skos:notation   "BH090";
        skos:prefLabel  "Land Subject to Inundation"@en .

<#values>  rdf:type     rdfs:Class;
        owl:oneOf       ( <../value/fri_1#it> <../value/fri_2#it> <../value/fri_3#it> <../value/fri_4#it> <../value/fri_5#it> <../value/fri_6#it> <../value/fri_7#it> );
        skos:prefLabel  "Flood Recurrence Interval: values"@en .

<../value/fri_1#it>  skos:notation  "FRI_1";
        skos:prefLabel  "Two Year Recurrence"@en .

<../value/fri_2#it>  skos:notation  "FRI_2";
        skos:prefLabel  "Five Year Recurrence"@en .

<../value/fri_3#it>  skos:notation  "FRI_3";
        skos:prefLabel  "Ten Year Recurrence"@en .

<../value/fri_4#it>  skos:notation  "FRI_4";
        skos:prefLabel  "Twenty Five Year Recurrence"@en .